'use strict'
const path = require('path')
const defaultSettings = require('./src/settings.js')

class HtmlWebpackTopBannerPlugin {
  banner = ''

  constructor(banner) {
    this.banner = `<!--${banner}-->\n`
  }

  apply(compiler) {
    compiler.hooks.compilation.tap(
      'HtmlWebpackTopBannerPlugin',
      (compilation, callback) => {
        compilation.hooks.htmlWebpackPluginAfterHtmlProcessing.tap(
          'HtmlWebpackTopBannerPlugin',
          (htmlPluginData, callback) => {
            htmlPluginData.html = this.banner + htmlPluginData.html
            return htmlPluginData
          }
        )
      }
    )
  }
}

function resolve(dir) {
  return path.join(__dirname, dir)
}

const name = 'TOMS' || defaultSettings.title // page title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following methods:
// port = 9528 npm run dev OR npm run dev --port = 9528
const port = process.env.port || process.env.npm_config_port || 9528 // dev port

const target = process.env.VUE_APP_PROXY

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  // publicPath: './',
  publicPath: '/operator/',
  outputDir: 'dist',
  assetsDir: 'static',
  lintOnSave: false,
  productionSourceMap: false,
  devServer: {
    port: port,
    open: true,
    overlay: {
      warnings: false,
      errors: true
    },
    proxy: {
      '/api': {
        secure: false,
        target: process.env.VUE_APP_PROXY,
        pathRewrite: { '/api': '' },
        changeOrigin: true
      }
    }
    // before: require('./mock/mock-server.js')
  },
  configureWebpack: {
    // provide the app's title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct title.
    // devtool: process.env.NODE_ENV === 'dev' ? 'source-map' : undefined,
    name: name,
    resolve: {
      alias: {
        '@': resolve('src'),
        assets: resolve('src/assets'),
        static: resolve('public/static'),
        'element-ui': path.resolve(__dirname, './src/element'),
        '@document': resolve('public/document')
      }
    },
    plugins: [new HtmlWebpackTopBannerPlugin(`Build Time: ${new Date()}`)]
  },
  chainWebpack(config) {
    // it can improve the speed of the first screen, it is recommended to turn on preload
    config.plugin('preload').tap(() => [
      {
        rel: 'preload',
        // to ignore runtime.js
        // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
        fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
        include: 'initial'
      }
    ])

    // when there are many pages, it will cause too many meaningless requests
    config.plugins.delete('prefetch')

    config.module
      .rule('images')
      .use('url-loader')
      .loader('url-loader')
      .tap((options) => ({
        ...options,
        fallback: {
          loader: 'file-loader',
          options: {
            context: path.resolve(__dirname, 'src/assets/images'),
            name: '[name].[ext]',
            outputPath: (url, resourcePath, context) => {
              if (/head-logo/.test(resourcePath)) {
                return `static/images/head-logo/${url}`
              }
              return `static/images/${url}`
            }
          }
        }
      }))
      .end()

    config.module
      .rule('vue')
      .use('vue-loader')
      .loader('vue-loader')
      .tap((options) => {
        options.compilerOptions.whitespace = 'preserve'
        options.compilerOptions.directives = {
          html(node, directiveMeta) {
            ;(node.props || (node.props = [])).push({
              name: 'innerHTML',
              value: `myxss.process(_s(${directiveMeta.value}))`
            })
          }
        }
        console.log(options)
        return options
      })

    config.module
      .rule('md')
      .test(/\.md$/)
      .use('vue-loader')
      .loader('vue-loader')
      .tap((options) => {
        console.log(options)
        return options
      })
      .end()
      .use('md-loader')
      .loader(path.resolve(__dirname, './build/md-loader/index.js'))
      .end()

    // set svg-sprite-loader
    config.module.rule('svg').exclude.add(resolve('src/icons')).end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    config.when(process.env.NODE_ENV !== 'development', (config) => {
      config
        .plugin('ScriptExtHtmlWebpackPlugin')
        .after('html')
        .use('script-ext-html-webpack-plugin', [
          {
            // `runtime` must same as runtimeChunk name. default is `runtime`
            inline: /runtime\..*\.js$/
          }
        ])
        .end()
      config.optimization.splitChunks({
        chunks: 'all',
        cacheGroups: {
          libs: {
            name: 'chunk-libs',
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: 'initial' // only package third parties that are initially dependent
          },
          elementUI: {
            name: 'chunk-elementUI', // split elementUI into a single package
            priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
            test: resolve('src/element')
          },
          commons: {
            name: 'chunk-commons',
            test: resolve('src/components'), // can customize your rules
            minChunks: 3, //  minimum common number
            priority: 5,
            reuseExistingChunk: true
          }
        }
      })
      // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
      config.optimization.runtimeChunk('single')
    })
  },
  css: {
    loaderOptions: {
      postcss: {
        plugins: [require('tailwindcss'), require('autoprefixer')]
      }
    }
  }
}
